CVE-2020-12827 MJML vulnerable to path traversal
An attacker can read arbitrary files via path traversal in the mj-include directive of the MJML email library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-12827?
CVE-2020-12827 is a high-severity path traversal vulnerability in n/a, published on 17 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MJML prior to 4.6.3 contains a path traversal vulnerability when processing the mj-include directive within an MJML document.
Weakness: CWE-22
Which versions are affected by CVE-2020-12827?
2 open source packages ship an affected version, including mjml. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mjml npm | All versions | 4.6.3 |
mjml npm | All versions | 4.6.3 |
Products include Mjml Mjml.
How do I fix CVE-2020-12827?
Upgrade mjml to 4.6.3 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-12827 being exploited?
There is no known exploitation of CVE-2020-12827 in the wild and no public exploit code.
Sources
Also known as GHSA-4hch-r9xf-6vfr.